The world of Ratchet & Clank. The whole universe of Ratchet & Clank is homicidal, humorous, whimsical, beautiful, interesting, chaotic, ridiculous, and plain stupid. Who wouldn't want to live there? Sure, you might end up living in a world with a high death rate, which almost any fictional and nonfictional world has, but at least your death would be more interesting than "hit by a car". No, instead, it'd be "hit by a snowman, fell down miles off a skyscraper, shot up by a crazed Agorian, teleported onto a comet, and then die after being turned into an explosive monkey", or "Mr. Zurkon". Also, Ratchet, Clank, and even Nefarious and Qwark would be awesome friends/frienemies.
That or the world of Super Mario or maybe Kirby. Both have whimsical worlds even if you're not one of the main characters. The world of inFAMOUS would be interesting if you had powers, but then you'd be persecuted and hunted down. If you didn't have powers, well, it'd be like everyday life. Mirror's Edge would be cool and I would love to be a runner leaping building after building. The world of the Legend of Zelda would be mundane if you weren't Link, Ganondorf, or Zelda or any important character. Sure, you got your Gorons, Zoras, Deku Shrubs, and fairies, but that would be like normal life in the world of Zelda.
Pretty much any Final Fantasy, the Tales, The Witcher, or any RPG would be fair game for a magical world. RPGs are supposed to draw players in, so their worlds tend to be well-created and engaging. The only issue is whether or not something wants to murder the world which tends to happen in RPGs.
I would not want to live in the world of Metal Gear. It'd be one of the worst worlds, for me besides any horror-related media, since life would be really creepy. I mean, you have AI's watching over you all the time. Cyborgs, war, and the economy are getting out of hand. Really long monologues that would kill you. Lots of crazy people capable of killing you in a blink of an eye. Being a civilian would be scary. Being a soldier would be hell. My life as a grunt would probably involve death, getting caught by Solid Snake or Big Boss, death, being sliced up by Raiden, death, dealing a guard with IBS, more death, getting knocked out, more and more death, having C4 or any explosives planted on me, even more death, getting stomped on (accidentally) by a GECKO, even more and more death, being sniped by a pretty lady, so much death, stabbed and violated by a creepy vampire, and did I mention death?
Edit: Forgot about this. The world of Avatar: The Last Airbender. It would so cool to having the ability to bend one of the four elements. Heck, even if I couldn't it'd still be amazing to watch benders.